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1、书名：机电专业英语ISBN：978-7-111-43709-3作者：严振宁出版社：机械工业出版社本书配有电子课件Catalog1.Unit1EngineeringDrawing2.Unit2MechanicalPropertiesofMetals3.Unit3MechanicalParts4.Unit4ToleranceandFits5.Unit5MachineTools6.Unit6Machining7.Unit7Basicknowledgeoffitter8.Unit8Welding9.Unit9Mechatronics10.Unit10CNCMachinesUnit1Engineerin
2、gDrawing-Text1.Engineeringdrawingcoversadetailedstructureofasinglepart.Therearemanytypesofengineeringdrawings.Unit1EngineeringDrawing-Text2.Butthegeneralarrangementofallthesepartsisshowninanassemblydrawing.Unit1EngineeringDrawing-Text3.Assemblydrawingsconsistofthefollowingfeatures:1).Dimensions:2).I
3、nternalparts:3).Partslist:Unit1EngineeringDrawing-Text4.Forexample,thecolumnof“Quantity”meansthequantityoftheparts,thecolumnof“Material”isusedforcomponentsthatarebeingmadeinthecompany.Andthe“Remarks”columnisusefulforspecifyingamanufacturespartnumber.Unit1EngineeringDrawing-Words and Expressionsarran
4、gementreindmntn.排列，安排assemblysemblin.集合，装配featurefi:tn.特色，特征dimensiondimennn.尺寸，尺度viewvju:n.视图listlistn.目录，列表，数据清单identifyaidentifaivt.识别，鉴别，确定Unit1EngineeringDrawing-WordsandExpressionsmanufacturemnjufktn.制造者，制造商consistof由组成engineeringdrawing工程制图assemblydrawing装配图sectionalview截面图，断面图，剖视图partslist零件
5、清单Unit1EngineeringDrawing-Synchronousreading()1.Beforeyoustartyourengineeringdrawing,thefirstthingistomakebestuseofthespace.()2.Thereareatleastfiverulesyoushouldobeybeforeyouproducinganengineeringdrawing.()3.Everyengineeringdrawingmustincludeaninformationbox.()4.TheScaleisveryimportantandithaveeffec
6、tonthefinalsizeoftheproduct.()5.Thesameonetofinishthedrawingandcheckingisallowed.Unit 2 Mechanical Properties of Metals-Text1.Metalshaveplayedanimportantpartinmansactivitiesformanycenturies.Woodandstonearebotholderinuse,andlatertheyhavebeensupplantedbymetalstoaconsiderableextent.Unit 2 Mechanical Pr
7、operties of Metals-Text2.Metalshaveagreatimportancebecauseoftheirusefulproperties.Metalsaremuchstrongerandharderthanwood.Metalisnotsobrittleasstone.Strength,hardnessandplasticityofmetalsarethepropertieswhichmakemetalsveryusefulforindustry.Itispossibletofindsomeplasticwoodbutitismuchsofterthanmanymet
8、alshaveacombinationofthesethreeusefulproperties.Unit 2 Mechanical Properties of Metals-Text3.Metalsareveryimportantinindustry.Allmachineshavemetalpartsandsomeofthemconsistonlyofmetalparts.Unit 2 Mechanical Properties of Metals-Words and Expressionscenturysenturin.世纪supplantspla:ntv.代替，取代considerable
9、kensiderebla.相当大(或多)的extentikstentn.程度brittlebritla.易碎的，脆的strengthstren.力，力量，强度plasticityplstisitin.可塑性，成形性Unit 2 Mechanical Properties of Metals-Words and Expressionscombinationkmbineienn.结合partpa:tn.零件，部件consistknsistv.由构成，由组成playpart起作用toaconsiderableextent在极大的程度上becauseof因为notsoas没有那样Unit 2 Mech
10、anical Properties of Metals-Synchronous reading()1.Thematerialofmetalcantoclassifiedintothreecategories.()2.Aluminumislightweightandsofterthansteel.()3.Stainlesssteelisarelativelyhardmaterialandtendstoshortenthelifeofthecuttingtools.(4.Typicalcarbonsteelcanbesubjectedtovariousheattreatments.()5.Theb
11、rasshasnotsogoodsolderingproperties.Unit3MechanicalParts-Text1.Machineelementsareelementarymechanicalpartsusedasbuildingblocksfortheconstructionofadevice,apparatusormachinery.2.Themostcommonexampleofmachineelementsisagear.Gearisatoothedwheel.Therotationofagearonahuborshaftdrivesothergearsrotatingfas
12、terorslowerdependinguponthenumberoftoothonthebasicwheels.Unit3MechanicalParts-Text3.Thematerialofagearestablishesitsstrengthandhardnessofitssurfacedeterminingitsresistancetowear.Knowledgeoftheforcesonthegearmakespossiblethedeterminationofitssize.Unit3MechanicalParts-Text4.Changesinitsshapeallowmodif
13、icationsinitsuse.Theseapplicationshavedevelopedintomanystandardformsofgearssuchasspur,bevel,helicalandwormgears.Unit3MechanicalParts-Text5.Otherfundamentalmachineelementsareshafts,bearingsandscrewsmainly.Unit3MechanicalParts-WordsandExpressionsmechanicalmiknikla.机械的blockblkn.部件，块料devicedivaisn.装置，设备
14、apparatuspreitsn.器械，仪器machinerymi:nrin.机械，机器toothtu:n.牙齿wheelhwi:ln.轮，机轮rotationrtenn.旋转，转动hubhbn.衬套，（轮）毂Unit3MechanicalParts-WordsandExpressionsmodificationmdfkenn.更改，修改standardstnddn.标准，规范bevelbevln.斜角helicalhelikla.螺旋形的wormw:mn.蜗杆machineelement机械零件resistancetowear耐磨性Unit3MechanicalParts-WordsandE
15、xpressionsspurgear正齿轮bevelgear伞齿轮helicalgear螺旋齿轮，斜齿轮wormgear蜗轮journalbearing轴颈轴承ballbearing球轴承rollernearing滚柱轴承Unit3MechanicalPartsSynchronousreading()1.Amachineiscombinedbyindividualmachineelementssuchasnuts,bolts,springs,gears,camsandshaftsandsoon.()2.Themostcommonexampleofamachineelementisanut.()3.Therotationofthisgeardrivesothergearsthatmayrotatefasterorslower,dependinguponthenumberofteethonthebasicwheels.()4.Allmachineelementsarecompletelystandardized.()5.Intheautomotiveindustryfasteners,bearingbushings,chainsandconnectingrodsarestandardized.